WO2016029926A1 - Method and system for the removal of particulate matter and heavy metals from engine exhaust gas - Google Patents

Method and system for the removal of particulate matter and heavy metals from engine exhaust gas Download PDF

Info

Publication number
WO2016029926A1
WO2016029926A1 PCT/EP2014/067985 EP2014067985W WO2016029926A1 WO 2016029926 A1 WO2016029926 A1 WO 2016029926A1 EP 2014067985 W EP2014067985 W EP 2014067985W WO 2016029926 A1 WO2016029926 A1 WO 2016029926A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
filter
anyone
particulate
particulate filter
Prior art date
Application number
PCT/EP2014/067985
Other languages
English (en)
French (fr)
Inventor
Keld Johansen
Maurizio Archetti
Original Assignee
Haldor Topsøe A/S
Ecospray Technologies S.R.L.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Haldor Topsøe A/S, Ecospray Technologies S.R.L. filed Critical Haldor Topsøe A/S
Priority to EP14755093.3A priority Critical patent/EP3194736A1/en
Priority to JP2017509695A priority patent/JP2017528637A/ja
Priority to KR1020177003163A priority patent/KR20170043514A/ko
Priority to CA2954013A priority patent/CA2954013A1/en
Priority to PCT/EP2014/067985 priority patent/WO2016029926A1/en
Priority to CN201480081482.6A priority patent/CN106605045A/zh
Priority to US15/328,948 priority patent/US20170211441A1/en
Priority to CN201580045577.7A priority patent/CN106574536A/zh
Priority to PCT/EP2015/053698 priority patent/WO2016030025A1/en
Priority to JP2017511298A priority patent/JP6571761B2/ja
Priority to KR1020177003389A priority patent/KR102266312B1/ko
Priority to ES15706224T priority patent/ES2818083T3/es
Priority to EP15706224.1A priority patent/EP3194737B1/en
Priority to US15/500,579 priority patent/US10286360B2/en
Priority to CA2955211A priority patent/CA2955211C/en
Publication of WO2016029926A1 publication Critical patent/WO2016029926A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
    • B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/80—Chemical processes for the removal of the retained particles, e.g. by burning
    • B01D46/82—Chemical processes for the removal of the retained particles, e.g. by burning with catalysts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9413—Processes characterised by a specific catalyst
    • B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/944—Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
    • B01D53/9477—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on separate bricks, e.g. exhaust systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/063—Titanium; Oxides or hydroxides thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/20—Vanadium, niobium or tantalum
    • B01J23/22—Vanadium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/24—Chromium, molybdenum or tungsten
    • B01J23/30—Tungsten
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/44—Palladium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56—Platinum group metals
    • B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/652—Chromium, molybdenum or tungsten
    • B01J23/6527—Tungsten
    • B01J35/19—
    • B01J35/56—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • F01N13/0093—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series the purifying devices are of the same type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/011—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more purifying devices arranged in parallel
    • F01N13/017—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more purifying devices arranged in parallel the purifying devices are arranged in a single housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/087—Other arrangements or adaptations of exhaust conduits having valves upstream of silencing apparatus for by-passing at least part of exhaust directly to atmosphere
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/0232—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles removing incombustible material from a particle filter, e.g. ash
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/0233—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles periodically cleaning filter by blowing a gas through the filter in a direction opposite to exhaust flow, e.g. exposing filter to engine air intake
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/031—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters having means for by-passing filters, e.g. when clogged or during cold engine start
    • F01N3/032—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters having means for by-passing filters, e.g. when clogged or during cold engine start during filter regeneration only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
    • F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/105—General auxiliary catalysts, e.g. upstream or downstream of the main catalyst
    • F01N3/106—Auxiliary oxidation catalysts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting from exhaust energy
    • F01N5/04—Exhaust or silencing apparatus combined or associated with devices profiting from exhaust energy the devices using kinetic energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2067—Urea
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/30—Alkali metal compounds
    • B01D2251/304—Alkali metal compounds of sodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/60—Inorganic bases or salts
    • B01D2251/604—Hydroxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/10—Inorganic absorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/10—Inorganic absorbents
    • B01D2252/103—Water
    • B01D2252/1035—Sea water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1023—Palladium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20707—Titanium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20723—Vanadium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20776—Tungsten
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/915—Catalyst supported on particulate filters
    • B01D2255/9155—Wall flow filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/302—Sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds
    • B01D2257/404—Nitrogen oxides other than dinitrogen oxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/60—Heavy metals or heavy metal compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/702—Hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2273/00—Operation of filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2273/20—High temperature filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9495—Controlling the catalytic process
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2340/00—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses
    • F01N2340/06—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses characterised by the arrangement of the exhaust apparatus relative to the turbine of a turbocharger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2370/00—Selection of materials for exhaust purification
    • F01N2370/02—Selection of materials for exhaust purification used in catalytic reactors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2410/00—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device
    • F01N2410/04—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device during regeneration period, e.g. of particle filter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
    • F01N2550/06—By-pass systems
    • F01N2550/12—By-pass systems of particulate filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
    • F01N2550/14—Systems for adding secondary air into exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/04—Sulfur or sulfur oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/02—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for marine vessels or naval applications
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/08—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for heavy duty applications, e.g. trucks, buses, tractors, locomotives
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Definitions

  • the present invention relates to a method and system for the removal of hydrocarbons and particulate matter in form of soot, ash and heavy metals being present in exhaust gas from an engine.
  • the invention is useful for the removal of these components from the exhaust of an en ⁇ gine operated on heavy fuel oil.
  • Soot and ash are typically captured and removed by passing the exhaust through one or more filters arranged in the ex ⁇ haust system. After a certain time on stream the captured amounts of soot and ash cause an increasing pressure drop over the filters and the filters need to be regenerated by burning off the soot and blowing off the ash with compressed air or by a manual process.
  • the known particulate filter systems are developed for die- sel engine exhaust with a relatively low content of sulphur compounds and particulate matter. These systems can not be employed for e.g. maritime engines fuelled with heavy fuel oil, the so called bunker oil. Bunker oil contains very heavy hydrocarbons and polyaro- matic compounds. The oil is heavily contaminated with com ⁇ pounds, which do not burn and end as ash in the exhaust.
  • the general object of the invention is to provide a method and system for cleaning exhaust gas resulting from engines being fuelled with heavy fuel oil, which method and system ensure an effectively cleaning and a continuous op ⁇ eration of the engine, even when a particulate filter em ⁇ ployed in the method and system needs to be regenerated.
  • particulate matter in the exhaust gas from the engine contains further inorganic ash that cannot combust and therefore will accumulate in the filter over time and build up the pressure drop. Consequently, the in ⁇ organic ash and remaining amounts of soot must be removed by periodical reversing the flow direction of the exhaust gas through the filter or blowing off the ash and soot by impulsed injection of air.
  • Essential features of the invention are a continuous pas ⁇ sive regeneration of particulate filters by catalysing the filters with soot combustion and hydrocarbon oxidation catalysts, thereby improving the fuel consumption by keeping the pressure drop over the particulate filters low and by periodically and effectively blowing off of particulate matter by pulse injection of air into outlet of the fil- ters .
  • the catalysts facilitate to burn off and substantial ⁇ ly remove sticky hydrocarbon containing soot that facilitates the ash removal.
  • the invention provides a method for removal particulate matter, hydrocarbons, and heavy metals being present in exhaust gas from an engine operated on heavy fuel oil, comprising the steps of operating the engine at a load to obtain an exhaust temper ⁇ ature of the exhaust gas of at least 325°C; passing the exhaust gas at exhaust gas temperatures of 325°C to 550°C through the at least one filter unit each comprising at least one particulate filter and capturing the particulate matter and heavy metals contained in the exhaust gas; continuously burning the captured soot and adhered hydro ⁇ carbons off the at least one particulate filter by contact with a catalyst being arranged on the particulate filter; periodically disconnecting the at least one filter unit from flow of the exhaust gas; applying a pneumatic pulse at the outlet of the at least one particulate filter by pulse injecting air into the out ⁇ let in reverse to the previous flow of the exhaust gas and blowing off the captured particulate matter together with the heavy metals from the at least one particulate filter; applying suction at inlet of the at least
  • the particulate filters for use in the invention are pref ⁇ erably made from silicon carbide, cordierite, mullite, alu ⁇ minium titanate or sintered metal.
  • the filters for use in the invention are shaped as wall flow filters, which ensure the highest cleaning ef ⁇ ficiency, but other filter types may be employed.
  • the soot combustion catalyst is coated on and/or inside the filter walls.
  • Catalysts being active in the combustion of soot are known in the art and described inter alia in the patent litera ⁇ ture .
  • a preferred catalyst comprises titanium dioxide, oxides of vanadium and tungsten and metallic palladium as further disclosed in European patent no. EP1493484 Bl .
  • the catalyst reduces the ignition temperature of the trapped soot down to 350°C and at optimal process condi ⁇ tions further down to 325°C.
  • An auxiliary engine can be operated at a part load, whereby the exhaust gas temperature is above 325°C.
  • the exhaust gas temperature above 325°C at filter inlet thus secures pas ⁇ sive regeneration by continuous soot combustion.
  • Heavy fuel oil contains large amounts of vanadium and iron acting as fuel born additives and facilitate additionally burning off the soot above 325°C and thereby make it unnec ⁇ essary to add additives to the fuel.
  • an essential feature of invention is re ⁇ moval of trapped particulate matter formed during combus ⁇ tion of the heavy fuel oil.
  • the particulate filters must be cleaned periodically by shutting off the filters from ex ⁇ haust gas flow.
  • All filter units can be cleaned in a cyclic cleaning loop by the method according to the invention as described in more detail in the following.
  • the engine can remain in continuous operation because at least one filter unit remains in filtration mode.
  • air is injected in reverse to the previous flow of the exhaust gas at an injection pulse duration of between 10 and 600msec, preferably 300 msec.
  • a particulate filter or a section of a filter unit (5-50% of the entire filtering surface) can be closed at the outlet and the air is injected into the outlet by a valve or nozzle e.g. mounted on or near a clos ⁇ ing valve.
  • a valve or nozzle e.g. mounted on or near a clos ⁇ ing valve.
  • blowing off particulate matter compris ⁇ ing ash, uncombusted soot and heavy metals trapped in the particulate filter is even more efficiently because of the lower volume the air pulse injected into the particulate filter compared to a manner, where the outlet is open.
  • the air pulse propagates throughout the whole filter unit encasing the particulate filter/s and thus limits the cleaning effect.
  • the outlet of each particulate filter can be open during the cleaning cycle using a more powerful air injection pulse.
  • the advantage of this embodiment is sim ⁇ plicity and a more compact filter arrangement.
  • a cleaning air stream with high concentration of particulate matter exits from the inlet side of the particulate filter and the air stream is captured by a proper suction system.
  • the air stream containing the blown off particulate matter is then conveyed away from the inlet of the particulate filter through a suction pipe, op ⁇ tionally provided with a perforated grid installed at or close to the inlet of the particulate filter.
  • the suction pipe is connected to a suction source e.g. a suction pump, which is activated during or after the air pulse is inject ⁇ ed into outlet of the particulate filter.
  • the particulate matter may be sucked in the suction pipe through an external auxiliary low temperature filter or an auxiliary high temperature filter or both, optionally cata ⁇ lysed with a soot combustion catalyst as described above. Thereby, particulate matter removed from the main particu ⁇ late filters and contained in the cleaning air stream is separated from the stream in the auxiliary filter/s and then discharged into a storage container for future dispos ⁇ al .
  • the suction source can be made alternatively by an external suction pump provided with a small auxiliary filter.
  • the auxiliary filter collects the particle carried in the air stream in the suction gas flow line.
  • the suction stream can be also created by utilizing the pressure drop across the particulate fil ⁇ ter/s.
  • the suction pipe connects the ex ⁇ haust gas inlet side of the filter unit/s or the particu- late filter/s with the exhaust gas outlet side from the filter unit/s or the particulate filter/s and the particu ⁇ late matter blown off the particulate filter/s is sucked through an auxiliary filter installed in the suction pipe. When the cleaning cycle is in pause captured particulate matter can be removed from the auxiliary filter.
  • the pressure applied in the suction pipe must be low enough to ensure an efficient transport of particulate matter in the suction pipe.
  • the pressure in the suction pipe is in the range of 30-300 mbar below the pressure inside the particulate filters .
  • the air for pulse injection is withdrawn from an accumulator tank with compressed air at a pressure of 4 to 10 bar abs, preferably 6.5 bar abs.
  • the unit/s are arranged in a pressure vessel upstream an engine turbocharger .
  • the ex ⁇ haust gas may then be passed through the filter unit/s at a pressure of between 0 and 3 bar abs.
  • the soot combustion temperature can in this embodiment be kept at a more optimal level about 400°C without additional exhaust gas heating.
  • pressure drop over the particulate filter (s) is decreased when in ⁇ creasing the pressure of the exhaust gas and the tempera ⁇ ture.
  • the latter result advantageously in a diminished par ⁇ ticulate filter volume required for an effective filtration and facilitates e.g. a retrofit installation on ships with limited space for exhaust gas treatment.
  • the filtration process is in yet another embodiment addi ⁇ tionally combined with selective catalytic reduction (SCR) of nitrogen oxides (NOX) in the exhaust gas prior to the gas is passed through the filter unit/s or after the gas has passed through the filter unit/s.
  • SCR selective catalytic reduction
  • the method comprises the ad ⁇ ditional step of reducing amounts of sulphur oxides con ⁇ tained in the exhaust gas by scrubbing the gas in an open or closed loop, downstream of the at least one filter unit with a scrubbing liquid comprising an aqueous alkaline so- lution or an alkaline solution in sea water.
  • a scrubbing liquid comprising an aqueous alkaline so- lution or an alkaline solution in sea water.
  • the alkaline scrubbing liquid the sulphur oxides are converted to harmless alkaline metal sulphates or sulphites.
  • seawater can be used to in the scrubbing liquid. As heavy metals and soot are removed by the filters, the captured sulphur content in the scrubbing liquid can then be appropriately diluted for pH control and discharged into the sea.
  • the invention provides furthermore a system for removal of particulate matter comprising soot, ash and heavy metals being present in exhaust gas from an engine operated on heavy fuel oil comprising one or more exhaust gas inlet pipes connecting each the en ⁇ gine with inlet of each of one or more filtration units; one or more exhaust gas outlet pipes connected to outlet of each of the one or more filtration units; arranged within the one or more filtration units at least one particulate filter catalyzed with a catalyst for effec ⁇ tuating burning off of soot and hydrocarbons; an air pulse jet arrangement mounted at the outlet of the at least one particulate filter for blowing off the partic ⁇ ulate matter collected at the at least one particulate fil ⁇ ter; and the air pulse jet arrangement comprises one or more air blow pipes connected to an air supply, noz ⁇ zles in the air blow pipes and an eductor arranged at out ⁇ let of the least one particulate filter for pulse injection of air into the at least one particulate filter; and
  • the at least one particulate filter is in form of a wall flow filter.
  • the at least one particulate filter is coated on walls or inside walls with a catalyst catalysing burning of cap- tured soot with adhered hydrocarbons of the filters.
  • the catalyst consists preferably of titanium dioxide, ox ⁇ ides of vanadium and tungsten and metallic palladium.
  • the substrate of the at least one particulate filter may be prepared from silicon carbide, cordierite, mullite, alumin ⁇ ium titanate or sintered metal.
  • the one or more air blow pipes are connected to an accumu ⁇ lator tank with compressed air.
  • the one or more filtration units are arranged in a pressure vessel upstream an engine turbocharger .
  • the one or more filtration units are arranged downstream an engine turbocharger.
  • the one or more exhaust gas outlet pipes connect the one or more filtration units to a downstream selective catalytic reduction unit comprising a denitrification (SCR) catalyst.
  • the one or more exhaust gas inlet pipes connect the one or more filtration units to an upstream selective catalytic reduction unit comprising a denitrification (SCR) catalyst.
  • the one or more exhaust gas outlet pipes connect the one or more filtration units to a scrubber unit.
  • a selective catalytic reduction unit comprising a denitri- fication (SCR) catalyst unit is connected upstream to the one or more filtration units and downstream to a scrubbing unit.
  • SCR denitri- fication
  • the selective catalytic reduction unit is arranged upstream an engine turbocharger.
  • the system comprises further a by-pass pipe by-passing the exhaust gas at least one of the one or more filtration units .
  • the system further comprises one or more auxiliary filter units connected to the perforated grid and/or pipe down ⁇ stream the at least one particulate filter.
  • the air pulse jet arrangement further comprises an isola ⁇ tion valve at outlet of the at least one particulate fil ⁇ ter .
  • Fig. 1 shows a schematic flow sheet of the method and sys- tern according to the invention.
  • Fig. 2 is en exploded view of the cleaning arrangement and the valve and nozzle configuration arranged at outlet of a particulate filter.
  • the system for use in the method according to an embodiment of the invention comprises a filtration unit 4 connected at outlet via exhaust turbine 12 of a turbocharger 10 to an SCR unit 6.
  • SCR unit 6 is connected to SO x - scrubber 8.
  • the filtration unit 4 is divided by a wall 14 into an ex ⁇ haust gas inlet section 4a and a filtrated exhaust gas out ⁇ let section 4b.
  • the unit 4 comprises three particulate fil ⁇ ters 16 a,b,c.
  • the particulate filters are modular and spaced apart ar ⁇ ranged in unit 4, which allows individual regeneration or replacing of spent filters as described below.
  • Outlets 18 a, b, c of the particulate filters are lockable and connected to pulse jet cleaning valves 20 a, b, c.
  • the cleaning valves can lock the outlet of the filters sequen ⁇ tially or all at once after a predetermined time on stream or otherwise determined, e.g. by the pressure drop created over the filters.
  • the jet cleaning valves may be connected to an accumulator tank with compressed air (not shown) and provide a pressurized and pulsed air stream with a duration as disclosed above in reverse flow to the previous exhaust gas flow through filters 16a, b,c.
  • the filtration unit 4 is connected to a downstream air compressor 24 of a turbocharger 10 via the engine 2 by an exhaust gas pipe 26.
  • the advantage of such a configuration is described hereinbefore.
  • turbocharger air compressor 24 it is preferred to arrange the filtration unit 4 within a pressure vessel 28 in order to allow the filtration unit to better utilize the pressure drop gain with the same soot load obtained by the pressurized engine exhaust gas.
  • the soot combustion increases with higher temperature that is always present upstream a turbocharger and may eliminate support heating.
  • the filtrated exhaust gas is passed from filtration unit 4 in line 32 via exhaust turbine 12 of turbocharger 10 to SCR catalyst unit 6.
  • SCR catalyst unit 6 Prior to be introduced into unit 6, urea is injected into the gas as reductant for the SCR of nitro ⁇ gen oxides.
  • the SCR reaction and catalysts for use in the reaction are widely disclosed and known in the art and need no further description.
  • the SCR treated exhaust gas in pipe 34 is passed to scrubber unit 8 for the removal of SO x .
  • the exhaust gas is scrubbed with a diluted alkaline solution, e.g. an aqueous solution of sodium hydroxide wherein the SO x are converted to sodium sulphite and/or sodium sulphate dissolved in the scrubber solution.
  • a diluted alkaline solution e.g. an aqueous solution of sodium hydroxide wherein the SO x are converted to sodium sulphite and/or sodium sulphate dissolved in the scrubber solution.
  • the pH value of spent scrubber solution can easily be adjusted to a value around 7 and because heavy metals, soot and ash have been removed from the exhaust gas prior to scrubbing it is possible to distribute spent scrubber solution into the environment with negligible risk thus fulfilling foreseen IMO regulations .
  • Fig. 2 is an exploded view of an air pulse jet valve ar ⁇ rangement 20 connected to outlet 18 of the particulate fil ⁇ ters 16, shown in Fig. 1.
  • the air pulse jet valve arrangement 20 according to an em- bodiment of the invention comprises air blow pipes 21a and 21b with air nozzles (not shown) at outlet of the pipes.
  • the air blow pipes are connected through pipe 23 to a pres ⁇ surized air supply from a compressed air tank (not shown) .
  • Valve arrangement 20 comprises further an isolation valve 25 at outlet 18 of a filtration unit 4.
  • the filtration unit 4 is provided with two filters 16a and 16b with outlet pipes 19a and 19b, respectively.
  • the outlet pipes are in form of eductors .
  • the outlet 18 is open and filtered exhaust gas leaving filters 16a and 16b from outlet pipes 19a and 19b is withdrawn through outlet 18.
  • outlet 18 is locked by isolation valve 25 and pressurized air from pipe 23 is passed sequentially to air blow pipes 21a and 21b and pulse injected into eductors 19a and 19b, respectively.
  • the air pulse injected into filters 16a and 16b in reverse to the previous exhaust gas flow causes ash and remaining amounts of soot accumulated in the filters to peel off from the filter surface and then being blown to a perforat ⁇ ed grid 23a and 23b close to the outlet of filter 16a and 16b.
  • the blown off particulate matter is sucked through the grids to suction pipe 22 connected to grids 23a and 23b.
  • Suction pipe 22 is connected to a vacuum pump (not shown) establishing a sufficient suction pressure in the line to suck the particulate matter through an external filter 24. Captured particulate matter is removed from filter 24 and conveyed to a disposal container 26.
  • filter 16a is under regeneration.
  • An air pulse 27 is injected through air blow pipe 21a into eductor 19a in outlet of filter 16a for about 300 msec.
  • Particulate matter 28 is hereby blown off from filter 16a and collected on grid 23a facing the outlet of filter 16a.
  • suction is applied in line 22 and the collected particulate matter on grid 23a is sucked in line 26 through auxiliary filter 27 and captured.
  • the captured particulate matter is disposed to con ⁇ tainer 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Biomedical Technology (AREA)
  • Toxicology (AREA)
  • Organic Chemistry (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Catalysts (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Treating Waste Gases (AREA)
  • Filtering Materials (AREA)
  • Gas Separation By Absorption (AREA)
PCT/EP2014/067985 2014-08-25 2014-08-25 Method and system for the removal of particulate matter and heavy metals from engine exhaust gas WO2016029926A1 (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
EP14755093.3A EP3194736A1 (en) 2014-08-25 2014-08-25 Method and system for the removal of particulate matter and heavy metals from engine exhaust gas
JP2017509695A JP2017528637A (ja) 2014-08-25 2014-08-25 粒状物質及び重金属をエンジン排ガスから除去するための方法及びシステム
KR1020177003163A KR20170043514A (ko) 2014-08-25 2014-08-25 엔진 배기가스로부터 미립자 물질 및 중금속의 제거를 위한 방법 및 시스템
CA2954013A CA2954013A1 (en) 2014-08-25 2014-08-25 Method and system for the removal of particulate matter and heavy metals from engine exhaust gas
PCT/EP2014/067985 WO2016029926A1 (en) 2014-08-25 2014-08-25 Method and system for the removal of particulate matter and heavy metals from engine exhaust gas
CN201480081482.6A CN106605045A (zh) 2014-08-25 2014-08-25 用于从发动机废气中去除颗粒物质和重金属的方法和系统
US15/328,948 US20170211441A1 (en) 2014-08-25 2014-08-25 Method and system for the removal of particulate matter and heavy metals from engine exhaust gas
CN201580045577.7A CN106574536A (zh) 2014-08-25 2015-02-23 用于净化工艺尾气或发动机废气的方法
PCT/EP2015/053698 WO2016030025A1 (en) 2014-08-25 2015-02-23 Method for cleaning process off- or engine exhaust gas
JP2017511298A JP6571761B2 (ja) 2014-08-25 2015-02-23 オフガスまたはエンジン排気ガスをクリーニングする方法
KR1020177003389A KR102266312B1 (ko) 2014-08-25 2015-02-23 공정 오프가스 또는 엔진 배기가스를 정화하기 위한 방법
ES15706224T ES2818083T3 (es) 2014-08-25 2015-02-23 Método para limpiar gas residual de proceso o de escape de motor
EP15706224.1A EP3194737B1 (en) 2014-08-25 2015-02-23 Method for cleaning process off- or engine exhaust gas
US15/500,579 US10286360B2 (en) 2014-08-25 2015-02-23 Method for cleaning process off- or engine exhaust gas
CA2955211A CA2955211C (en) 2014-08-25 2015-02-23 Method for cleaning process off- or engine exhaust gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2014/067985 WO2016029926A1 (en) 2014-08-25 2014-08-25 Method and system for the removal of particulate matter and heavy metals from engine exhaust gas

Publications (1)

Publication Number Publication Date
WO2016029926A1 true WO2016029926A1 (en) 2016-03-03

Family

ID=51392270

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/EP2014/067985 WO2016029926A1 (en) 2014-08-25 2014-08-25 Method and system for the removal of particulate matter and heavy metals from engine exhaust gas
PCT/EP2015/053698 WO2016030025A1 (en) 2014-08-25 2015-02-23 Method for cleaning process off- or engine exhaust gas

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/053698 WO2016030025A1 (en) 2014-08-25 2015-02-23 Method for cleaning process off- or engine exhaust gas

Country Status (8)

Country Link
US (2) US20170211441A1 (ko)
EP (2) EP3194736A1 (ko)
JP (2) JP2017528637A (ko)
KR (2) KR20170043514A (ko)
CN (2) CN106605045A (ko)
CA (2) CA2954013A1 (ko)
ES (1) ES2818083T3 (ko)
WO (2) WO2016029926A1 (ko)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017029169A1 (en) 2015-08-14 2017-02-23 Orion Engineered Carbons Gmbh Methods and systems for particulate matter removal from a process exhaust gas stream
IT201600115059A1 (it) * 2016-11-15 2018-05-15 Mario Lisanti Metodo e apparato per la rigenerazione di filtri antiparticolato e dispositivi catalizzatori

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016150805A1 (en) * 2015-03-23 2016-09-29 Haldor Topsøe A/S Method and system for the removal of particulate matter from engine exhaust gas or process equipment
US10294839B2 (en) * 2015-04-13 2019-05-21 Illinois Valley Holding Company Engine exhaust emissions treatment system
CN108889297B (zh) 2018-07-31 2020-12-29 包头稀土研究院 Scr催化剂及其制备方法和应用
US11085358B2 (en) * 2019-06-04 2021-08-10 Deere & Company Cooling and debris mitigation systems for work vehicle powertrains
CN110295986A (zh) * 2019-07-03 2019-10-01 河北工业大学 一种柴油机尾气处理装置和方法
CN110942208B (zh) * 2019-12-10 2023-07-07 萍乡市恒升特种材料有限公司 一种碳化硅泡沫陶瓷的最优生产条件确定方法
CN111921294B (zh) * 2020-10-19 2021-01-12 山东中航天业科技有限公司 一种可实现脱硫脱硝除尘一体化的金属滤筒
CN117101300A (zh) * 2023-08-25 2023-11-24 深圳市睿维盛环保科技有限公司 VOCs废气处理系统

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5390492A (en) * 1992-02-21 1995-02-21 Northeastern University Flow-through particulate incineration system coupled to an aerodynamically regenerated particulate trap for diesel engine exhaust gas
JPH07286511A (ja) * 1994-04-18 1995-10-31 Hino Motors Ltd 逆洗式パティキュレート捕集装置
WO1999010633A1 (en) * 1997-08-29 1999-03-04 Ceramem Corporation Diesel exhaust aftertreatment system and process
US20060144223A1 (en) * 2004-10-05 2006-07-06 Sellers Cheryl L Deposition system and method
US20100224062A1 (en) * 2009-03-05 2010-09-09 Ronald Patterson Caustic-assisted seawater scrubber system
WO2012041455A1 (en) * 2010-10-01 2012-04-05 Haldor Topsøe /S Method and system for the removal of particulate matter in engine exhaust gas
WO2013179266A1 (en) * 2012-06-01 2013-12-05 Ecospray Technologies S.R.L. Particulate filtering apparatus for marine diesel engines and method of operation and regeneration of said apparatus

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2900548B2 (ja) * 1990-07-12 1999-06-02 旭硝子株式会社 ディーゼル排気ガス浄化装置
JP2932758B2 (ja) * 1991-05-15 1999-08-09 旭硝子株式会社 ディーゼルエンジン微粒子処理装置
JPH0517111U (ja) * 1991-08-12 1993-03-05 いすゞ自動車株式会社 エンジンの排気ガス浄化装置
JP3335611B2 (ja) * 2000-07-03 2002-10-21 有限会社 ナサオート 排気ガス浄化装置
JP2001227332A (ja) * 2000-02-16 2001-08-24 Mitsubishi Heavy Ind Ltd 船舶の排ガス脱硝システム
CN1201071C (zh) * 2000-03-29 2005-05-11 丰田自动车株式会社 内燃机的废气净化装置
CN2459443Y (zh) * 2000-07-07 2001-11-14 清华大学 一种反向喷气再生柴油机碳烟过滤器
US6989045B2 (en) * 2002-04-12 2006-01-24 Illinois Valley Holding Co. Apparatus and method for filtering particulate and reducing NOx emissions
US20060021335A1 (en) * 2004-07-29 2006-02-02 Caterpillar, Inc. Exhaust treatment system having particulate filters
JP4319816B2 (ja) * 2002-08-29 2009-08-26 株式会社三五 内燃機関の排気ガス浄化装置
JP2004285881A (ja) * 2003-03-20 2004-10-14 Isuzu Motors Ltd ディーゼルエンジンの排気浄化装置
DE602004005107T2 (de) * 2003-07-02 2007-06-28 Haldor Topsoe A/S Verfahren und Filter zur katalytischen Behandlung von Dieselabgasen
US7229597B2 (en) * 2003-08-05 2007-06-12 Basfd Catalysts Llc Catalyzed SCR filter and emission treatment system
JP4392217B2 (ja) * 2003-10-08 2009-12-24 日野自動車株式会社 マフラの支持構造
TWM266609U (en) * 2004-07-16 2005-06-01 Hon Hai Prec Ind Co Ltd Electrical connector assembly
CN100395435C (zh) 2005-06-29 2008-06-18 清华大学 逆向喷气再生的壁流式金属网板柴油车排气微粒捕集器
CN101479447A (zh) * 2006-07-11 2009-07-08 博格华纳公司 在涡轮增压器前有后处理装置的增强的发动机空气通气系统
JP2009052440A (ja) * 2007-08-24 2009-03-12 Hitachi Plant Technologies Ltd 舶用排ガス処理装置
JP4995689B2 (ja) * 2007-10-26 2012-08-08 日野自動車株式会社 排気浄化装置
US8241403B2 (en) * 2009-06-08 2012-08-14 Catalytic Solutions, Inc. Apparatus and method for regenerating a carbon filter
US8347611B2 (en) * 2009-12-23 2013-01-08 Ford Global Technologies, Llc Methods and systems for emission system control
US8096125B2 (en) 2009-12-23 2012-01-17 Ford Global Technologies, Llc Methods and systems for emission system control
CN201908706U (zh) * 2010-11-21 2011-07-27 高玉琴 颗粒过滤装置及配套的压缩空气气源和颗粒收集装置
JP5839663B2 (ja) * 2011-07-05 2016-01-06 日野自動車株式会社 排ガス浄化装置
WO2013127473A1 (en) * 2012-03-02 2013-09-06 Haldor Topsøe A/S Method and system for the removal of noxious compounds from engine exhaust gas
JP6074912B2 (ja) * 2012-05-11 2017-02-08 いすゞ自動車株式会社 排気ガス浄化システム及び排気ガス浄化方法
JP2013241859A (ja) * 2012-05-18 2013-12-05 Isuzu Motors Ltd 排気ガス浄化システム及び排気ガス浄化方法
EP3330504B1 (en) * 2012-11-07 2022-09-21 Johnson Matthey Public Limited Company Catalised substrate
GB201302686D0 (en) * 2013-02-15 2013-04-03 Johnson Matthey Plc Filter comprising three-way catalyst
US9387438B2 (en) * 2014-02-14 2016-07-12 Tenneco Automotive Operating Company Inc. Modular system for reduction of sulphur oxides in exhaust

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5390492A (en) * 1992-02-21 1995-02-21 Northeastern University Flow-through particulate incineration system coupled to an aerodynamically regenerated particulate trap for diesel engine exhaust gas
JPH07286511A (ja) * 1994-04-18 1995-10-31 Hino Motors Ltd 逆洗式パティキュレート捕集装置
WO1999010633A1 (en) * 1997-08-29 1999-03-04 Ceramem Corporation Diesel exhaust aftertreatment system and process
US20060144223A1 (en) * 2004-10-05 2006-07-06 Sellers Cheryl L Deposition system and method
US20100224062A1 (en) * 2009-03-05 2010-09-09 Ronald Patterson Caustic-assisted seawater scrubber system
WO2012041455A1 (en) * 2010-10-01 2012-04-05 Haldor Topsøe /S Method and system for the removal of particulate matter in engine exhaust gas
WO2013179266A1 (en) * 2012-06-01 2013-12-05 Ecospray Technologies S.R.L. Particulate filtering apparatus for marine diesel engines and method of operation and regeneration of said apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017029169A1 (en) 2015-08-14 2017-02-23 Orion Engineered Carbons Gmbh Methods and systems for particulate matter removal from a process exhaust gas stream
US10870762B2 (en) 2015-08-14 2020-12-22 Orion Engineered Carbons Gmbh Methods and systems for particulate matter removal from a process exhaust gas stream
US11667794B2 (en) 2015-08-14 2023-06-06 Orion Engineered Carbons Gmbh Methods and systems for particulate matter removal from a process exhaust gas stream
IT201600115059A1 (it) * 2016-11-15 2018-05-15 Mario Lisanti Metodo e apparato per la rigenerazione di filtri antiparticolato e dispositivi catalizzatori
WO2018091987A3 (en) * 2016-11-15 2019-04-25 Lisanti Mario METHOD AND APPARATUS FOR REGENERATING DIESEL PARTICULATE FILTERS AND CATALYTIC CONVERTERS

Also Published As

Publication number Publication date
CA2955211C (en) 2020-06-02
CN106574536A (zh) 2017-04-19
US10286360B2 (en) 2019-05-14
KR20170043514A (ko) 2017-04-21
JP2017528637A (ja) 2017-09-28
EP3194737A1 (en) 2017-07-26
CA2955211A1 (en) 2016-03-03
KR102266312B1 (ko) 2021-06-18
EP3194737B1 (en) 2020-06-17
CA2954013A1 (en) 2016-03-03
US20170216771A1 (en) 2017-08-03
KR20170041726A (ko) 2017-04-17
ES2818083T3 (es) 2021-04-09
JP2017532479A (ja) 2017-11-02
WO2016030025A1 (en) 2016-03-03
US20170211441A1 (en) 2017-07-27
CN106605045A (zh) 2017-04-26
JP6571761B2 (ja) 2019-09-04
EP3194736A1 (en) 2017-07-26

Similar Documents

Publication Publication Date Title
JP6482634B2 (ja) エンジン排気ガスから微粒子物質の煤、灰及び重金属を除去するための方法及びシステム
EP3194736A1 (en) Method and system for the removal of particulate matter and heavy metals from engine exhaust gas
EP2855865B1 (en) Particulate filtering apparatus for marine diesel engines and method of operation and regeneration of said apparatus
JP6745813B2 (ja) エンジン排ガス又はプロセス装置から粒状物質を除去するための方法及びシステム
WO2012041455A1 (en) Method and system for the removal of particulate matter in engine exhaust gas

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14755093

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2954013

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 15328948

Country of ref document: US

ENP Entry into the national phase

Ref document number: 20177003163

Country of ref document: KR

Kind code of ref document: A

REEP Request for entry into the european phase

Ref document number: 2014755093

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2014755093

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2017509695

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE